Onsen Rules: rules that changedhttps://onsenrules.com/changesDated changes to onsen and sento rules and prices in Japan.en Tokyo's set public-bath (sento) price: ¥550 → ¥600https://onsenrules.com/changesprice tokyo 2026-08-01Fri, 31 Jul 2026 15:00:00 GMTTokyo public-bath admission (set maximum): adults (12 and over) ¥600 (previously ¥550); children 6–11 ¥200 (unchanged); children under 6 ¥100 (unchanged). Effective August 1, 2026. Hakone Yumoto Onsen Yoshiike Ryokan: tattoo rulehttps://onsenrules.com/changestattoo hakone 2023-12-01 hakone/hakone-yumoto-onsen-yoshiike-ryokan-19dutThu, 30 Nov 2023 15:00:00 GMTFrom December 1, 2023, guests whose tattoos can be covered with two 10 cm × 14 cm cover stickers may use the baths.